An Aztec snake god has taken the material form of an apartment complex.

Frida Kahlo's childhood home, now a museum of her life and works.

The only castle in North America to ever house European sovereigns.

Part bookstore, part café, and part forest.

Diego Rivera's massive tiled fountain and failed infrastructure project.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

Visiting this cacophonous collection of vintage novelties is like stepping into the mind of a crazed toymaker.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

66,000 pieces of art, donated by one of the world's richest men.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

Narrow-gauge railway with its own personal power grid.

A three-shelf library serves as a memorial in the Jewish cemetery of Krems.

Ride a dragon train into a world of dwarves.

A unique opportunity to stay the night in retrofitted sections of sewer pipe.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Plagued by riots, celebrity injuries and a tragic death, this amusement park has been demolished.

A rare festival blending religion, blacksmiths, vagina dentata, sex workers, and the straight-up facts of life.

Hand-powered race of alternative forms of transportation.

Two churches shoot bottle rockets at each others' bell towers in an unusual Easter celebration.

Even after the church tried to wipe the practice out, this pagan festival lives on each year in a small Scottish village.

This bizarre English competition answers the important question: how many worms can YOU coax out of the ground?